{
  "$schema": "http://json-schema.org/draft-04/schema",
  "required": [ "things" ],
  "properties": {
    "things": {
      "type": "array",
      "items": { "$ref": "#/definitions/single" }
    }
  },
  "definitions": {
    "single": {
      "type": "integer"
    }
  }
}
